I want to know how to calculate the size of electricity cable in building?

0 Answers   DR Engineering Services,

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we all know that in transformer, voltage and current are inversely related i.e. Vp/Vs= Is/Ip....so in standard CT..we have a ratio of 200/5...that means our voltage should increase by ratio of 40..althoug that is not the case...because that requires high insulation level.and pratically not feasible......can anybody clarify my ques.......thanx

2 Answers  

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what is balanced network and unbalanced network

1 Answers   Nalco,

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What is the difference between switch gear and control gear ?

2 Answers   QU,

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How to Convert horsepower to kva? what is the three phase formula? explain me if u can Example..i have 50Hp Moter how can i convert in kva tell me formula three phases Rehan Smileavail@msn.com

4 Answers   Bajaj,

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what is recovery voltage & transient voltage ?

1 Answers   Bhel,

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7. A resistance of 30 ohm is connected across 240v supply. If a resistance R ohm is connected in parallel with 30ohm resistor across the same supply, the current drawn becomes triple of original one The unknown resistor R is

2 Answers  

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Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.

0 Answers  

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what is reasion of harmonic create the power supply , And how to reduced to harmonic

1 Answers   Turbo,

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A resistor,inductor and capacitor are connected in series respectively.Voltage across resistor is 40v,across inductor is 70v,across capacitor is 100v.Then what is the total voltage applied across the elements?

5 Answers  

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how do you tell if a avalanche button diode is a p or an

1 Answers  

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what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

0 Answers  

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